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(5supra 7)la puterea 2 ori (5supra7)la puterea 3
Calculati folosind reguli de calcul cu puterei!!


Răspuns :

(5/7)^2×(5/7)^3=(5/7)^5

(5/7)^2×(5/7)^3=(5/7)^6=5^6/7^6=30/42=5/7